Example with all variables modifiable

---
rougail:                      # Rougail
  var1:                       # A suffix variable
    - val1
    - val2
  var2: val1                  # A suffix variable2
  dynval1:
    var:                      # A dynamic variable
      - val1
  dynval2:
    var:                      # A dynamic variable
      - val2
  var3:                       # A variable calculated
    - val1